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Network devices that we use in computer networks have the feature of recording the events that take place. With these records, it is possible to confirm the events taking place on the network and to take the necessary precautions in case of harmful events. This is called Log Analysis. Log management, which consists of steps such as storing, analyzing and presenting as text, allows to obtain indicators and evidence of the attack.
It also assists in the forensic investigation of attacks, helping to obtain important information about which channels and when the attack was carried out, which protocols were used, and where the attack was initiated. Logs must be monitored daily and real-time alarms must be set up for high-risk events.
SIEM in Turkish Information Security and Records Management Compared to log analysis, it offers better reporting options with its fine-grained research and advanced system. Many data about an organization's security have been created in more than one place, and the SIEM system is capable of analyzing all this data from a single point of view, detecting trends and not being out of the ordinary. One of the most important features of SIEM is the correlation technique, which helps to detect possible attacks by establishing meaningful connections between events that seem to be independent with the help of determined policies and rules. A SIEM system collects daily data analytics and many security-related documents on a single platform for analysis. Protecting a business from sophisticated cyber threats is a very difficult process. Visibility and actionability on security threats that appear to be unrelated events pose both a reputational and financial risk to the organization if attempted without a secure advisory service.
In SIEM systems, the process of converting log records in different formats to a common data normalizationmaking connections between events correlationthe process of reducing the size of the data by enabling more than one recorded event to be reduced to one. combining is called.
Threats to network security are spreading rapidly and new ones are emerging every day. The increase in the number of devices connected to these networks causes an increase in the possibility of infiltration into the networks. In this case, companies have to analyze the data collected from multiple sources in order to detect the threats facing the network and decide on the security steps to be taken as a result. In this case, our Team collects, correlates, analyzes and stores logs of security events in networks, hosts and critical applications . It also uses the core security features required for complete and effective threat detection, incident response and compliance management. Our certified security experts work to detect and investigate any malicious activity and respond instantly to threats in real time. Our SIEM / Log management services provide you with a better view of security-related events occurring in your network. In addition, industry regulations such as FISMA, FFIEC, PCI DSS, GLBA, COBIT, ISO 2700, HIPAA and SOX protect, backup and analyze log data in the IT infrastructure of organizations. obliges them to do so.
We consider SIEM service to be a necessity rather than a luxury, because the benefits of SIEM products enable an organization to see the "big picture" of security incidents across the enterprise. By aggregating security log data from enterprise security controls, host operating systems, applications, and other software components, SIEM can analyze large amounts of security log data to identify attacks and threats lurking within. A SIEM is often able to identify malicious activity that no other host can identify because it is the only security control with enterprise-wide visibility.
In some ways, security information and event management (SIEM) differs from the normal, average event log management that businesses use to look at network vulnerability and performance. However, SIEM, as a term to express various technologies together, is built on the basic principle of event log management and monitoring. The biggest difference may be the techniques and features involved.
Software tools used in SIEM and Log Management service; Examples include SolarWinds Security Event Manager ManageEngine EventLog Analyzer Micro Focus ArcSight ESM Splunk Enterprise Security LogRhythm Security Intelligence Platform AlienVault Unified Security Management RSA NetWitness IBM QRadar.